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Comparison of the effects of antibiotic use on pain and infection symptoms after lower third molar removal surgery: a randomized, triple-blind clinical trial

Comparison of the clinical effects of postoperative antibiotic therapy in the prevention of local and systemic infections after third molar surgeries: a randomized, triple-blind clinical study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
REBEC
Registry ID
RBR-9d26qz7
Enrollment
41
Registered
2026-04-07
Start date
2024-03-01
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Disorders of the teeth and their supporting structures impacted teeth

Interventions

This is a randomized controlled clinical trial, with four arms and triple-blind. A total of 60 teeth and 41 patients met the eligibility criteria and were probabilistically allocated to one or another
15 teeth in this group). 2 – Preoperative antibiotic therapy (2 grams of amoxicillin was administered 1 hour before the surgical procedure, 15 teeth in this group). 3 – Postoperative antibiotic therap

Sponsors

Obras Sociais e Educacionais de Luz
Lead Sponsor
Universidade de Santo Amaro
Collaborator

Eligibility

Age
18 Years to 35 Years

Inclusion criteria

Inclusion criteria: Patients of both genders; aged between 18 and 35 years; who do not present Local or Systemic Pathologies; having impacted lower third molars that require Osteotomy and/or Odontosection

Exclusion criteria

Exclusion criteria: Patients who are allergic to the medications used in the study; individuals who were not interested in participating in the research; diagnosis of Cardiac Diseases

Design outcomes

Primary

MeasureTime frame
Expected outcome 1: An improvement is expected in the postoperative period of patients who received antibiotic therapy before third molar surgery, as assessed by pain measurements and the presence of infection, with at least a 5% variation for the test groups. Data collected on the day of the intervention and at different periods after the intervention.;Outcome found 1: It was observed that the groups in which antibiotics were administered postoperatively, both with and without preoperative administration, obtained the best values for pain and presence of infection, with a 25% lower infection rate compared to the placebo (control) group and 20% lower pain perception in the first 6 hours postoperatively.

Secondary

MeasureTime frame
Expected outcome 2: Given the methodology used, we expect to find lower measurements of edema and trismus following the removal of impacted third molars in the groups that received antibiotic therapy pre- and/or postoperatively. ;Outcomes found: It was observed that the group that received antibiotic therapy pre- and postoperatively showed a significant reduction in trismus compared to the placebo group following the removal of third molars. The results regarding edema were not significant.

Countries

BR

Contacts

Public ContactKaique Silva

Universidade de Santo Amaro

kaiqrael@gmail.com+55 (011) 982274411

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: May 1, 2026